Vehicle-spring.



C. M. WALTZ. VEHICLE S'PRlNG, APPLIoATxoN FILED AUG. 2e, 1912.

1,06 1,342. 'Patented May 1.3, 1913.

ummm fi: o T mlmunm f7 4f- H f6 mi@ 2z l aman@ 'i1/2mg'.

I To concern; y i) Be it known'that I, CLAUD M. WAL'rz, a

Suminitville, in 'the' county of Madison and State of Indiana, -have ,invented certain Springs, of 4which t ication. 1

v lVehicle sprinvs as ordinarily constructed 'are extremely diflicult to lubricate, consider- 'v able time and hard workbeing required to pry the leaves apart and force the lubricant therebetween,` and in orderto/obviate this difficulty, .the structure which `is the subject 415i ofthe pre'sentinventionhas been designed,

e following is al speci- :thef saine" comprisingineanswhereby 'the s rings can be readily kept lubricated, s o t iat they will not creak,fand ivillridefeasier and last-long re-r.l -4

. '2li -Tlie structure will bedescribed in detail hereinafter, reference bein had to'the ac- "'companying drawing inw ich- Figui-e1 is a central vertical section of a --full elliptic spring made in-j accordance with t-h'einvention. Fig. 2 is1aplan view of one of tlie leaves ofthe spring.

j super-posed bowedleaves of the top half .j A'-of'thesprin ,and 9, 10,11 and 12 denote the'leaves'o tbebotton'i half thereof. A "-full elliptic springis sliown,.but it is to be nnderstoodthat the invention is not liinited tosucliA aforin of spring but may, with equalfacility, be applied to a semielliptic or other forms of springs. The number of leaves in the spri vmay also be varied without a departure'n? om the'invcntion. The parts thus far described are arranged in the 'ordinary manner and nothing is 'claimed' 40 with respect thereto.

46 Tlie'se openings extend entirely through the leaf and each"registers with the inner end of a. groove 14 in the top of the next leaf 6, said grooves extending'in the direction of 50 each o the grooves 14 registers With an opening 15' in the lea'f-v 6, which opening extends entirelytlirough said leaf., Eff f, openingulI registers with the inner en d ci a lon itiidinal grooije ljlin the top \f the next lea 7, and the. outer end of each groove 16 IS11eeiiiiti iii of Letters Patient. l 'rrliciiti led August 2611912. serial N; 717,104.

l l The openin citizen of the United. States, residing at,

new' anduseful Improvements in Vehicle-- Inthe drawing, '5, 6, 7 and 8 denoteftlie'.

In the top leaf 5 of the upper half of vthe spring are made t-vijosmall openings 13, which Vare located respectively -on opposite sides ofthe middle portion of .the spring.

the len h of said leaf.' The outer end of' l registerswith an opening,` 1 7 in the leaf 7.-`

leaf. 7 an with the top surface of the bottom leaf 8.`

The herein described arrangement ofopen-A continuous lubricantfvducts. which-start in' face ofthe bottom leaf 8. The .rection ofthe ducts is outward in opposite' .directions from the tion of their outer ends, itwill be seenthat .the grooves 14 :and 16 in the? top llof the the direction of the` openings in the said tween the several leaves. -Thev contiguous surfaces of the leaves are therefore supplied with a lubricant, thereby eliminatii'io creaklast longer by 'reducing wear. Thelubri'cant ducts in the bottom half ofthe spring are saine manner as -tlie lubricant ducts ofthe, top half `f"thespring, with the' exception the outer end of the saine and-extend inward, this arrangement being nccessarjiY for the reason that the incline of the leaves. is ii'iuardltoward the. middle portion lof the spi-ing.

mounted :in oil or grease cup 18.

and willnot materially increase the cost of any appreciable` .extent as vthe openings and very small.

I claim:

1.v A- spring composed of a series of superimposedbowed' lea\es, the top surface of the interinediateleaves of the series 'having interconimunicating longitudinal grooves,

of the series bein in communicationv with the top s urfaceof said bottom leaf, and the communicate 'with the grooves of t e interleaf. i

y 2. A'spring composed of' a series of superings and grooves inthe leaves produces two.

leaves', and the oil or otherlubricantfwill therefore work down by gravity and in be" also formed byopenings and grooves `in the that the d ucts of said'bottom half startnear At `the mouthv of cach duct isV The herein described structure which per nuts lubrication of the spring is very simple i .mediate leaf which is contiguous to' said top L wALrirorsnMirr-Irvnnn, iiinmnii.

Patented May 13'. 1513.

extend entirely throu'gh the thus establish communication thetopleaf 5` and terminate at the top sur-- .general dimiddle' portion of the top half of the spring,l and as tliefleiives are inclined from this portion, in the-direi intermediate leaves 6. and 7 are inclined in.

ing, and-making the spring ride easier, and ,l

'the spring; nor is the spring weakened to.'

grooves form outthe lubricant ducts are'- the longitudinal grooves of the intermediate leaf which is contiguous to the bottom le'af top leaf of the series having openings .which l imposed bowed leaves, there being openings through the top ,and intermediate leaves of ing at one end with the o enings in said A the series, and the fon surface of the in- I eaves, and at their other en with the openl termedmte -lenves having longitudinal g ings in/'the next leaf above= the aforesaid.

grooyes communicating at one end with the 5 openings-in said leaves, and at their other I eggs with the openings in the next leaf In testimonv whereof I affix my signature n \,'e.,`

l l 1 in presenceof two witnesses. 3. A spl-infr compo'scr of a series of s r- T i imposed bowfd leaves, thexe Ibeing openm'gs v CLALD M WALTZ 10 through -theltop and. intermediate leavesof Witnesses;

- the series, und the top surface of the inter- -Fmxxi H. Ccs'rm,

'mediate' lex 1ves lm i'ing' grooves communicat- Snmox JOKL.

grooves running-in the direction 0f the ineline of the leaves. 

